US3095317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode ray tube screening
Assignee: General Electric Co
•
Filing: 1959-10-27
•
Granted: 1963-06-25
•
Expires: 1979-10-27
Abstract
No abstract record available.
Inventors
- 👤 Victor N Saffire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:21
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2271
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A METHOD OF MAKING CATHODE RAY TUBE SCREENS COMPRISING COVERING A SCREEN SUPPORT SUBSTRATE TO A SUBSTANTIAL DEPTH WITH A POOL OF LIQUID SCREEN SOLUTION INCLUDING PARTICLES OF LUMINESCENT SCREEN MATERIAL MIXED WITH A PHOTO-SENSITIVE RESIST, WHILE SAID SUBSTRATE IS COVERED BY SAID LIQUID POOL EXPOSING SAID SOLUTION WITH LIGHT INCIDENT THROUGH SAID SUBSTRATE OF SOLIDIFY ON SAID SUBSTRATE A LAYER OF SAID SOLUTION HAVING PARTICLES OF LUMINESCENT SCREEN MATERIAL ENTRAPPED THEREIN, CONTINUOUSING SAID EXPOSURE TO PROGRESSIVELY SOLIDIFY THE PORTION OF SAID SOLUTION AT THE INTERFACE THEREOF WITH THE SOLIDIFIED MATERIAL THEREBENEATH, TERMINATING SAID EXPOSURE WHEN THE LAYER OF SAID SOLIDIFIED MATERIAL HAS BUILT UP TO THE DESIRED THICKNESS RECOVERING THE REMAINDER OF SAID LIQUED POOL COVERAPPLYING HEAT TO THE DRIED LAYER FOR A SUFFICIENT PERIOD APPLYING HEAT TO THHE DRIED LAYER FOR A SUFFICIENT PERIOD TO VOLATILIZE AND REMOVE THEREFROM THE RESIST PORTIONS OF SAID DRIED LAYER.
Claim 2
Independent Claim
148 words
A METHOD OF MAKING CATHODE RAY TUBE SCREENS COMPRISING COVERING A SCREEN SUPPORT SUBSTRATE TO A SUBSTANTIAL DEPTH WITH A POOL OF LIQUID SCREEN SOLUTION INCLUDING PARTICLES OF LUMINESCENT SCREEN MATERIAL MIXED WITH A PHOTO-SENSITIVE RESIST, WHILE SAID SUBSTRATE IS COVERED BY SAID LIQUID POOL EXPOSING SAID SOLUTION WITH LIGHT INCIDENT THROUGH SAID SUBSTRATE OF SOLIDIFY ON SAID SUBSTRATE A LAYER OF SAID SOLUTION HAVING PARTICLES OF LUMINESCENT SCREEN MATERIAL ENTRAPPED THEREIN, CONTINUOUSING SAID EXPOSURE TO PROGRESSIVELY SOLIDIFY THE PORTION OF SAID SOLUTION AT THE INTERFACE THEREOF WITH THE SOLIDIFIED MATERIAL THEREBENEATH, TERMINATING SAID EXPOSURE WHEN THE LAYER OF SAID SOLIDIFIED MATERIAL HAS BUILT UP TO THE DESIRED THICKNESS RECOVERING THE REMAINDER OF SAID LIQUED POOL COVERAPPLYING HEAT TO THE DRIED LAYER FOR A SUFFICIENT PERIOD APPLYING HEAT TO THHE DRIED LAYER FOR A SUFFICIENT PERIOD TO VOLATILIZE AND REMOVE THEREFROM THE RESIST PORTIONS OF SAID DRIED LAYER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |